The MacBook Air M5 vs M4 debate arrives at an awkward moment for Apple’s mid-tier laptop line. The M5 15-inch launched in 2026 with genuine performance gains—doubled base storage, Wi-Fi 7, and PCIe 4.0 speeds—but the previous-generation M4 15-inch is now selling for $1,099 at Amazon, a $300 discount that fundamentally changes the upgrade math.
Key Takeaways
- M5 delivers 15-16% faster multi-core CPU performance and up to 4x faster AI processing than M4
- M4 15-inch now costs $1,099 (down $300), making it 3.6% better value-for-money than M5
- Both models offer identical 18-hour battery life and fanless design; M5 adds Wi-Fi 7 and doubled base storage
- For typical business tasks, M4 and M5 perform nearly identically; gains matter mainly for AI and creative work
- M5 GPU is 30% faster and SSD reads are 2x faster, but these upgrades justify cost only for power users
MacBook Air M5 vs M4: Raw Performance Numbers
The MacBook Air M5 vs M4 performance gap is real but modest for everyday work. The M5’s 10-core CPU (4 performance cores, 6 efficiency cores) reaches 17,073 in Geekbench 6 multi-core, compared to the M4’s 14,731—a 15-16% lead. GPU performance widens the gap: the M5 delivers up to 30% faster graphics processing, and gaming improves by roughly 50%. Storage speed nearly doubles, with M5’s PCIe 4.0 SSDs hitting 2x faster read-write speeds than M4’s PCIe 3.0. For AI workloads, Apple confirms the M5 is approximately 4x faster on 14-billion parameter language models. These numbers sound impressive until you open a web browser or write a document—then both chips feel identical.
The M5 also doubles base storage to 512GB (from M4’s 256GB) and includes 16GB of RAM as standard across all configurations. This is a genuine quality-of-life improvement, especially for creative professionals juggling large files. The M4 started at 256GB, forcing buyers to pay extra for adequate storage. However, this storage advantage does not translate to performance; it is a capacity upgrade, not a speed one.
Why the M4 at $1,099 Changes Everything
Pricing is where the MacBook Air M5 vs M4 decision becomes contentious. The M4 15-inch hit a record low of $1,099 at Amazon in March 2026—a $300 discount from its original $1,399 price. The M5, launched at a higher starting price due to doubled base storage and extra RAM, does not yet have comparable discounts. For most users, the value proposition flips entirely. One analysis estimates the M4 offers 3.6% better value-for-money at current discounted pricing compared to the M5. That might sound marginal, but it reflects a brutal truth: you are paying a premium for speed gains you will not feel in daily use.
A 15-16% CPU improvement is statistically significant but practically invisible when opening Slack, editing spreadsheets, or streaming video. The M4 remains an excellent machine for these tasks, and it will remain so for years. Paying $300 more for the M5 to gain imperceptible speed in routine workflows is difficult to justify, especially when that discount could fund storage upgrades or accessories.
Where M5 Actually Wins: AI and Creative Work
The MacBook Air M5 vs M4 gap widens dramatically for specific workloads. The M5’s 4x faster AI processing is not hyperbole—it is Apple-confirmed performance on real language models. If you run local LLMs, generate images, or train machine learning models on your laptop, the M5 becomes genuinely compelling. The M5 is approximately 24% faster at image generation in real-world tests. Video editors, 3D artists, and developers will feel the difference. The doubled base storage also matters more for these users, since creative projects consume space rapidly.
For everyone else—writers, analysts, designers using cloud tools—the M4 remains plenty fast. The 50% gaming improvement sounds dramatic until you realize both chips already exceed 60 frames per second in demanding titles. You are buying performance headroom you will not exhaust.
Storage, Connectivity, and Design: The Practical Differences
Beyond raw speed, the MacBook Air M5 vs M4 differs in connectivity and storage approach. The M5 includes Wi-Fi 7 (via Apple’s N1 chip) and Bluetooth 6.0, versus the M4’s Wi-Fi 6E and Bluetooth 5.3. Wi-Fi 7 is faster on paper, but real-world speed gains depend on your router and internet connection. Most users will not notice the difference. Both models offer identical 18-hour battery life and fanless designs, so thermal performance is a wash.
The 512GB base storage on M5 versus 256GB on M4 is the most practical upgrade. Storage is not sexy, but it is useful—you start with twice the space before spending extra. This alone might justify the M5 for users who frequently work with large files or prefer not to manage cloud storage limits.
MacBook Air M5 vs M4: Which Size Matters?
One complication: the M5 launched first in the 13-inch form factor, while the M4 is available in both 13-inch and 15-inch sizes. If you want a 15-inch screen, the M4 at $1,099 is currently your best value option. The 15-inch M4 is 280 grams heavier than the 13-inch M5 (0.62 lbs difference) but offers a larger display and better speakers. For desk-bound work, this size advantage is worth the extra weight. The 13-inch M5 is lighter and more portable but forces you into a smaller workspace.
Should You Buy the MacBook Air M5?
If you are running local AI models, editing 4K video, or processing large datasets regularly, the M5 is the right choice. The 4x AI speed and doubled storage justify the premium for power users. If you are a typical knowledge worker—email, documents, web browsing, occasional photo editing—the M4 at $1,099 is the smarter buy. You save $300 and get a machine that will handle your workload effortlessly for five years. The M5’s speed gains only matter if you do work that demands them.
Is the MacBook Air M5 worth upgrading from M4?
If you already own an M4, upgrading to M5 is not urgent unless you work with AI or creative tools daily. The M4 remains excellent for routine tasks, and the $300 discount makes it even more compelling for new buyers. Only upgrade if you can quantify the benefit—faster renders, quicker AI inference, or storage relief—rather than chasing benchmark numbers.
What is the difference between M5 and M4 battery life?
Both the M5 and M4 deliver up to 18 hours of battery life on a single charge. There is no battery advantage to the M5, so longevity between charges is a tie. Real-world battery life depends on screen brightness, workload, and background apps—both chips handle these identically well.
The MacBook Air M5 vs M4 decision ultimately hinges on your workload and budget. The M5 is objectively faster and includes useful upgrades like doubled storage and Wi-Fi 7. But the M4 at $1,099 is objectively smarter for most people. Apple has created a situation where the older machine offers better value, and that is not a problem to solve by buying newer—it is a signal to buy smarter.
Where to Buy
MacBook Air 15-inch (M4), which is on sale at Amazon for only $1,099 (was $1,399) | Apple MacBook Air 15 (2025): | check out all of today's deals at Amazon
This article was written with AI assistance and editorially reviewed.
Source: TechRadar
